CN213138902U - Baby stroller structure - Google Patents

Abstract

The utility model discloses a baby stroller structure, the back foot bar upper end is rotated and is connected with preceding foot bar, be equipped with the bulge on the back foot bar, it is connected with the bracing piece to rotate on the bulge, back foot bar middle part is equipped with the fixing base, back foot bar inboard still is equipped with the spout, be equipped with the sliding seat that can coast about in it in the spout, be equipped with preceding pull rod between sliding seat and the preceding foot bar, be equipped with the back pull rod between sliding seat and the bracing piece, be equipped with frame locking mechanism between fixing base and the sliding seat, still be connected with the back on the fixing base, and be equipped with back locking mechanism between back lower extreme and the fixing base, the bracing piece, still be equipped with the operating element that enables back locking mechanism and frame locking mechanism unblock simultaneously in bulge and the back foot bar. The utility model discloses frame and back unblock simultaneously for baby carriage skeleton texture folds very convenient and fast, does not need the independent operation frame and the back is folding, labour saving and time saving.

Description

Baby stroller structure

[ technical field ] A method for producing a semiconductor device

The utility model relates to a baby's shallow structure.

[ background of the invention ]

Strollers have become an indispensable product in the growth of strollers. Present strollers are generally collapsible for portability. However, the current stroller configurations still suffer from the following disadvantages: the frame and the backrest of the baby stroller need to be independently operated and unlocked when being folded, otherwise the frame cannot be folded due to interference, so that the folding operation of the baby stroller is complicated, in addition, the volume of the existing baby stroller after being folded is still larger, and an improved space still exists.

Therefore, the present invention is based on the above disadvantages.

[ Utility model ] content

The utility model aims at overcoming the defects of the prior art and providing a baby stroller structure with simple structure and small size after folding. The frame and the backrest of the baby stroller structure can be unlocked simultaneously, and the frame locking mechanism and the backrest locking mechanism can be unlocked simultaneously only by moving the operation part, so that the baby stroller structure is folded very conveniently and quickly, the frame and the backrest do not need to be separately operated to be folded, and time and labor are saved.

The utility model discloses a realize through following technical scheme:

a baby stroller structure, characterized in that: comprises a foldable frame 1, the frame 1 comprises a rear foot bar 11, the lower end of the rear foot bar 11 is provided with a rear wheel 12, the upper end of the rear foot bar 11 is rotatably connected with a front foot bar 13, the lower end of the front foot bar 13 is connected with a front wheel 15, the rear foot bar 11 is provided with a projecting part 10 projecting upwards, the projecting part 10 is rotatably connected with a support bar 14, the middle part of the rear foot bar 11 is provided with a fixed seat 16, the inner side of the rear foot bar 11 is also provided with a sliding groove 1a, the sliding groove 1a is internally provided with a sliding seat 17 capable of sliding up and down, a front pull rod 18 rotatably connected with the sliding seat 17 and the front foot bar 13 is arranged between the sliding seat 17 and the support bar 14, a rear pull rod 19 rotatably connected with the sliding seat 17 and the support bar 14 is arranged between the fixed seat 16 and the sliding seat 17, and a frame locking mechanism 4 capable of locking the unfolded state of the frame 1 is arranged between, the fixing seat 16 is further connected with a backrest 2, a backrest locking mechanism 3 for locking the backrest 2 and the fixing seat 16 is arranged between the lower end of the backrest and the fixing seat, and an operating component 5 capable of enabling the backrest locking mechanism 3 and the frame locking mechanism 4 to be unlocked simultaneously is further arranged in the supporting rod 14, the protruding portion 10 and the rear foot rod 11.

The baby stroller structure as described above, characterized in that: the front wheel 15 include front wheel frame 151, front wheel frame 151 on be equipped with fixed axle 152 and tire 153, front wheel 15 and front foot pole 13 between be equipped with the anti-shake device, the anti-shake device including establishing the fixed cover 71 of front foot pole 13 lower extreme, fixed cover 71 in be equipped with the card hole 72 that supplies fixed axle 152 to go into, fixed cover 71 in still be equipped with the lower extreme and support and lean on front wheel frame 151 and can be in fixed cover 71 anti-shake subassembly 73 of drunkenness from top to bottom, anti-shake subassembly 73 and fixed cover 71 between be equipped with buffer spring 74.

The baby stroller structure as described above, characterized in that: the anti-shake assembly 73 comprises an anti-shake column 731, the upper end of the anti-shake column 731 is abutted against the buffer spring 74, and the lower end of the anti-shake column 731 is connected with an anti-shake plate 732 which can be abutted against the front wheel carrier 151.

The baby stroller structure as described above, characterized in that: the upper end of the front foot rod 13 is provided with a transverse rod 1b, the transverse rod 1b is provided with a leg rest assembly which can rotate relative to the transverse rod 1b, the leg rest assembly comprises a leg rest plate 81 which is rotatably connected to the transverse rod 1b, the inner side of the leg rest plate 81 is rotatably connected with a clamping rod 83 which can be clamped with a clamping step 82 on the transverse rod 1b, and a positioning spring 84 is arranged between the clamping rod 83 and the leg rest plate 81.

The baby stroller structure as described above, characterized in that: frame locking mechanical system 4 including rotating the stick up pole 41 of connection on fixing base 16, stick up 41 lower extreme be connected with the card lock pole 42 that can be taken lateral shifting when it rotates, sliding seat 17 on be equipped with the kayser hole 43 that can block or separate with card lock pole 42, operating means 5 including establishing in back foot bar 11 and can promote stick up 41 upper ends and make stick up pole 41 pivoted operating lever 51, stick up pole 41 and fixing base 16 between still be equipped with the first spring 44 that can make card lock pole 42 and kayser hole 43 keep the block when frame 1 expandes the state.

The baby stroller structure as described above, characterized in that: the lower end of the backrest 2 is provided with a backrest seat 21, the backrest locking mechanism 3 comprises a plurality of clamping grooves 31 which are arranged on the backrest seat 21 and arranged along the circumferential direction, a plurality of tooth sockets 32 are arranged on the fixed seat 16 along the circumferential direction, a moving block 33 capable of moving transversely is arranged in a cavity enclosed by the fixed seat 16 and the backrest seat 21, the moving block 33 is provided with a clamping strip 34 which can be clamped with the clamping groove 31 and teeth 35 which can be clamped with the tooth grooves 32, a push block 52 which can be pushed by the operating rod 51 to move transversely when the operating rod 51 pushes the tilting rod 41 to rotate is arranged in the fixed seat 16, when the pushing block 52 moves transversely, the pushing block 52 pushes the moving block 33 to move transversely so as to separate the teeth 35 from the tooth grooves 32, a second spring 36 is provided between the back rest base 21 and the moving block 33 to engage the teeth 35 with the teeth grooves 32 when the frame 1 is in the unfolded state.

The baby stroller structure as described above, characterized in that: an adjusting mechanism capable of adjusting the angle of the backrest 2 is further arranged between the moving block 33 and the fixed seat 16, the adjusting mechanism comprises a rotating block 61 arranged between the moving block 33 and the fixed seat 16, an inclined bulge is arranged on the moving block 33, an inclined groove 63 capable of being matched with the inclined bulge is arranged on the rotating block 61, when the rotating block 61 rotates, the groove wall of the inclined groove 63 pushes the moving block 33 to move transversely so as to enable the tooth 35 to be separated from the tooth groove 32, a sliding sleeve 64 capable of sliding relative to the backrest 2 is arranged on the backrest 2, and a pull cable 65 capable of pulling the rotating block 61 to rotate is arranged between the sliding sleeve 64 and the rotating block 61.

The baby stroller structure as described above, characterized in that: the upper end of the supporting rod 14 is rotatably connected with a hand push handle 1c, a sliding rod 53 capable of sliding relative to the supporting rod 14 and the protruding part 10 is arranged in the supporting rod 14 and the protruding part 10, a pull rope 54 capable of pulling the sliding rod 53 to slide downwards when the hand push handle 1c rotates is arranged between the hand push handle 1c and the sliding rod 53, a driving block 55 capable of being pushed by the sliding rod 53 to slide downwards when the sliding rod 53 slides downwards is arranged in the upper end of the rear foot rod 11, a slope 5a capable of pushing the operating rod 51 to move downwards when the driving block 55 slides downwards is arranged on the driving block 55, and a third spring 56 capable of enabling the driving block 55 to reset is further arranged in the rear foot rod 11.

The baby stroller structure as described above, characterized in that: a fixing rod 57 with an arc-shaped end part is arranged in the supporting rod 14, a fixing groove 58 is arranged on the fixing rod 57, the sliding rod 53 is arranged in the fixing groove 58, and the pull rope 54 penetrates through the fixing rod 57 and bypasses the end part of the fixing rod to be connected with the sliding rod 53.

The baby stroller structure as described above, characterized in that: the operating rod 51 is provided with a transverse hole 59, the upper side hole wall of the transverse hole 59 is an inclined surface, and the push block 52 is provided with an inclined surface 50 which can be matched with the upper side wall of the transverse hole 59.

Compared with the prior art, the utility model discloses there is following advantage:

1. the utility model discloses the baby's shallow structure is when folding, the operation operating part, can make back locking mechanism and frame locking mechanism unblock simultaneously, the back is just automatic fall to the back foot bar, meanwhile, the back is at the in-process of falling, the sliding seat just slides to back foot bar lower extreme in the spout, the sliding seat just makes bracing piece and preceding foot bar rotate to the back foot bar through back pull rod and preceding pull rod and draws close, finally realize the bracing piece, preceding foot bar, preceding pull rod, back pull rod and back all draw close to on the back foot bar, folding very convenient and fast that get up, it is small after folding, and convenient to carry, only need the action operating part just to realize frame locking mechanism and back locking mechanism unblock simultaneously, therefore, only need operate a part just can realize that the frame is folding and fold back and frame together, operate very convenient and fast that get up. And the sliding seat is arranged in the sliding groove at the inner side of the rear foot rod and can slide along the sliding groove, so that the sliding seat slides stably when being folded, and the whole baby stroller has a simple and compact structure.

2. The utility model discloses a be equipped with anti-shake device between front wheel and the preceding foot bar, anti-shake device is equipped with the card hole that supplies fixed axle card to go into including establishing the fixed cover at preceding foot bar lower extreme in the fixed cover, still is equipped with the lower extreme in the fixed cover and supports the anti-shake subassembly that leans on in the front wheel carrier and can play from top to bottom in fixed cover, is equipped with buffer spring between anti-shake subassembly and the fixed cover. Therefore, when the stroller touches an uneven road surface, even if the front wheel shakes left and right due to the gap between the fixing shaft and the engaging hole, the shake is relieved by the buffer spring when the front wheel frame touches the anti-shake assembly, so that the infant in the stroller can ride comfortably.

3. The utility model discloses simple structure, folding convenient operation, folding back is small, portable is fit for popularizing and applying.

[ description of the drawings ]

FIG. 1 is a perspective view of the present invention;

fig. 2 is a side view of the present invention in an unfolded state;

fig. 3 is one of the side views of the present invention during the folding process;

fig. 4 is a second side view of the folding process of the present invention;

fig. 5 is a third side view of the utility model during the folding process;

fig. 6 is a side view of the present invention in a folded state;

fig. 7 is a perspective view of components of the present invention;

fig. 8 is one of the cross-sectional views of a component of the present invention;

fig. 9 is one of exploded views of components of the present invention;

fig. 10 is a second exploded view of the components of the present invention;

fig. 11 is a second cross-sectional view of a component of the present invention;

FIG. 12 is an enlarged view at A in FIG. 11;

fig. 13 is a perspective view of the sliding seat of the present invention;

fig. 14 is a third exploded view of the components of the present invention;

fig. 15 is a fourth exploded view of the components of the present invention;

fig. 16 is a third sectional view of the components of the present invention.

[ detailed description ] embodiments

The invention will be further described with reference to the accompanying drawings:

as shown in fig. 1 to 9, a stroller structure comprises a foldable stroller frame 1, the stroller frame 1 comprises a rear leg 11, a rear wheel 12 is disposed at the lower end of the rear leg 11, a front leg 13 is rotatably connected to the upper end of the rear leg 11, a front wheel 15 is connected to the lower end of the front leg 13, an upward protruding protrusion 10 is disposed on the rear leg 11, a support rod 14 is rotatably connected to the protrusion 10, a fixing seat 16 is disposed at the middle of the rear leg 11, a sliding slot 1a is further disposed at the inner side of the rear leg, a sliding seat 17 capable of sliding up and down is disposed in the sliding slot 1a, a front pull rod 18 rotatably connected to the sliding seat 17 and the support rod 13 is disposed between the sliding seat 17 and the support rod 14, a rear pull rod 19 rotatably connected to the sliding seat 17 and the support rod 14 is disposed between the fixing seat 16 and the sliding seat 17, and a stroller frame locking mechanism 4 capable of locking the unfolded state of the stroller frame 1 is disposed between the fixing seat 17, the fixing seat 16 is further connected with a backrest 2, a backrest locking mechanism 3 for locking the backrest 2 and the fixing seat 16 is arranged between the lower end of the backrest and the fixing seat, and an operating component 5 capable of enabling the backrest locking mechanism 3 and the frame locking mechanism 4 to be unlocked simultaneously is further arranged in the supporting rod 14, the protruding portion 10 and the rear foot rod 11. When the baby stroller structure is folded, the operation part 5 is operated, the backrest locking mechanism 3 and the frame locking mechanism 4 can be unlocked simultaneously, the backrest 2 can fall onto the rear foot bar 11 automatically, meanwhile, in the falling process of the backrest 2, the sliding seat 17 slides towards the lower end of the rear foot bar 11 in the sliding groove 1a, the sliding seat 17 enables the supporting rod 14 and the front foot bar 13 to rotate towards the rear foot bar 11 through the rear pull rod 19 and the front pull rod 18 to be drawn close, and finally the supporting rod 14, the front foot bar 13, the front pull rod 18, the rear pull rod 19 and the backrest 2 are drawn close to the rear foot bar 11, so that the baby stroller structure is convenient and rapid to fold, has small volume after folding and is convenient to carry, the frame locking mechanism 4 and the backrest locking mechanism 3 can be unlocked simultaneously only by operating the operation part 5, therefore, the folding of the frame 1 and the folding of the backrest 2 and the frame 1 can be realized together by operating one part, the operation is very convenient and fast. And the sliding seat 17 is arranged in the sliding groove 1a at the inner side of the rear foot rod 11 and can slide along the sliding groove 1a, the sliding is stable when the baby stroller is folded, and the whole baby stroller has a simple and compact structure.

As shown in fig. 1, 15 and 16, the front wheel 15 includes a front wheel frame 151, the front wheel frame 151 is provided with a fixing shaft 152 and a tire 153, an anti-shake device is disposed between the front wheel 15 and the front foot rod 13, the anti-shake device includes a fixing sleeve 71 disposed at the lower end of the front foot rod 13, a clamping hole 72 for the fixing shaft 152 to be clamped is disposed in the fixing sleeve 71, an anti-shake assembly 73 is further disposed in the fixing sleeve 71, the lower end of the anti-shake assembly 73 abuts against the front wheel frame 151 and can move up and down in the fixing sleeve 71, and a buffer spring 74 is disposed between the anti-shake assembly 73 and the fixing sleeve 71. Therefore, when the stroller hits an uneven road surface, even if the front wheel 15 shakes left and right due to the gap between the fixing shaft 152 and the engaging hole 72, the shaking is discharged by the buffer spring 74 when the front wheel frame 151 touches the anti-shake assembly 73, thereby making the infant in the stroller comfortable.

As shown in fig. 15 and 16, the anti-shake assembly 73 includes an anti-shake column 731, an upper end of the anti-shake column 731 abuts against the buffer spring 74, and an anti-shake plate 732 capable of abutting against the front wheel frame 151 is connected to a lower end of the anti-shake column 731. When the front wheel 15 travels on uneven road, the shaking of the front wheel frame 151 pushes the anti-shaking plate 732, and then the anti-shaking column 731 moves up and down, so that the buffer spring 74 is deformed, and therefore the shaking generated by the front wheel 15 is unloaded by the buffer spring 74, so that the infant can take a comfortable ride

As shown in fig. 1 and 14, a transverse rod 1b is provided at the upper end of the front foot rod 13, a leg rest assembly which can rotate relative to the transverse rod 1b is provided on the transverse rod 1b, the leg rest assembly comprises a leg rest plate 81 which is rotatably connected to the transverse rod 1b, an engaging rod 83 which can be engaged with an engaging step 82 on the transverse rod 1b is rotatably connected to the inner side of the leg rest plate 81, and a positioning spring 84 is provided between the engaging rod 83 and the leg rest plate 81. The leg rest plate 81 and the engaging rod 83 are pinched, so that the engaging rod 83 can rotate relative to the leg rest plate 81, the engaging rod 81 can be separated from the engaging step 82 on the transverse rod 1b in the rotating process, at this time, the leg rest plate 81 can be rotated to adjust the position of the leg rest plate 81, when the leg rest plate is adjusted to a proper position, the engaging rod 83 is released, the positioning spring 84 is reset, so that the engaging rod 83 is engaged with the other engaging step 82, and the position of the leg rest plate 81 is maintained.

As shown in fig. 8 to 10 and fig. 13, frame locking mechanism 4 including rotate the stick up pole 41 of connection on fixing base 16, stick up pole 41 lower extreme be connected with can be taken transverse movement's card locking pole 42 when it rotates, sliding seat 17 on be equipped with can with card locking pole 42 block or the kayser hole 43 of separation, operating means 5 including establishing in back foot pole 11 and can promote stick up pole 41 upper end and make stick up pole 41 pivoted operating lever 51, stick up pole 41 and fixing base 16 between still be equipped with and enable card locking pole 42 and kayser hole 43 when frame 1 expandes the state and keep the first spring 44 of block. When frame locking mechanical system 4 is locked, card locking lever 42 and kayser hole 43 block, sliding seat 17 links together with fixing base 16 this moment, sliding seat 17 can not slide downwards along spout 1a, when frame locking mechanical system 4 unblock, action bars 51 promotes downwards and sticks up pole 41, stick up pole 41 pivoted in-process and just drive card locking lever 42 lateral shifting, and then make card locking lever 42 break away from with kayser hole 43, fixing base 16 and sliding seat 17 unblock this moment, frame locking mechanical system 4 has just been unblock, whole unblock operation convenience very, only need action bars 51 push down can.

As shown in fig. 8 to 10, the backrest 2 is provided at a lower end thereof with a backrest seat 21, the backrest locking mechanism 3 includes a plurality of engaging grooves 31 provided on the backrest seat 21 in a circumferential direction, a plurality of tooth sockets 32 are arranged on the fixed seat 16 along the circumferential direction, a moving block 33 capable of moving transversely is arranged in a cavity enclosed by the fixed seat 16 and the backrest seat 21, the moving block 33 is provided with a clamping strip 34 which can be clamped with the clamping groove 31 and teeth 35 which can be clamped with the tooth grooves 32, a push block 52 which can be pushed by the operating rod 51 to move transversely when the operating rod 51 pushes the tilting rod 41 to rotate is arranged in the fixed seat 16, when the pushing block 52 moves transversely, the pushing block 52 pushes the moving block 33 to move transversely so as to separate the teeth 35 from the tooth grooves 32, a second spring 36 is provided between the back rest base 21 and the moving block 33 to engage the teeth 35 with the teeth grooves 32 when the frame 1 is in the unfolded state. When the operating rod 51 moves downwards, the lower end of the operating rod 51 pushes the tilting rod 41 to rotate, so that the frame locking mechanism 4 is unlocked, in the process, the operating rod 51 pushes the pushing block 52 to move transversely, the pushing block 52 pushes the moving block 33 to move transversely in the transverse moving process, so that the teeth 35 on the moving block 33 are separated from the tooth grooves 32 on the fixed seat 16, at the moment, the backrest locking mechanism 3 is unlocked, and the backrest 2 can rotate relative to the rear foot rod 11 by means of the self gravity and fall down. Therefore, the frame locking mechanism 4 and the backrest locking mechanism 3 can be unlocked simultaneously by pushing the operating rod 51 downwards, and the frame locking mechanism 4 and the backrest locking mechanism 3 do not need to be operated independently when the baby stroller structure is folded, so that the baby stroller structure can be folded conveniently and quickly.

As shown in fig. 8 to 10, the operating rod 51 is provided with a transverse hole 59, the upper hole wall of the transverse hole 59 is an inclined surface, and the push block 52 is provided with an inclined surface 50 which can be matched with the upper wall of the transverse hole 59. Therefore, when the operating lever 51 moves downward, the push block 52 can be easily pushed to move laterally, so that the backrest locking mechanism 3 is unlocked with great convenience.

As shown in fig. 8 to 10, an adjusting mechanism capable of adjusting the angle of the backrest 2 is further disposed between the moving block 33 and the fixed seat 16, the adjusting mechanism includes a rotating block 61 disposed between the moving block 33 and the fixed seat 16, an inclined protrusion is disposed on the moving block 33, an inclined groove 63 capable of being matched with the inclined protrusion is disposed on the rotating block 61, when the rotating block 61 rotates, a groove wall of the inclined groove 63 pushes the moving block 33 to move transversely so as to disengage the teeth 35 from the tooth grooves 32, a sliding sleeve 64 capable of sliding relative to the backrest 2 is disposed on the backrest 2, and a cable 65 capable of pulling the rotating block 61 to rotate is disposed between the sliding sleeve 64 and the rotating block 61. Therefore, the backrest 2 can also be adjusted in angle, so that the infant can ride more comfortably. The specific adjusting process is as follows: through the sliding sleeve 64, the sliding sleeve 64 pulls the rotating block 61 to rotate through the pull cable 65 in the sliding process, the rotating block 61 pushes an inclined protrusion (not shown in the figure) on the moving block 33 through an inclined groove 63 on the rotating block in the rotating process, so that the moving block 33 transversely moves, further, the teeth 35 on the moving block 33 are separated from the teeth grooves 32 on the fixed seat 16, at the moment, the backrest 2 can be pulled to enable the backrest 2 to rotate, when the sliding sleeve 64 is rotated to a proper position, the second spring 36 pushes the moving block 33 to reset, so that the teeth 35 are clamped with the other teeth grooves 32, and the adjustment of the angle of the backrest 2 is completed. Although the locking of the angle of the backrest 2 and the locking of the unfolding of the backrest 2 are both realized by the engagement of the teeth 35 and the tooth sockets 32, the adjustment of the angle of the backrest 2 and the unlocking of the frame 1 are two independent operations, namely, the folding of the frame 1 and the backrest 2 can be realized by the disengagement of the teeth 35 and the tooth sockets 32 when the frame 1 is folded, and the adjustment of the angle of the backrest 2 can be realized by the disengagement of the teeth 35 and the tooth sockets 32 when the frame 1 is unfolded, so that the design is very ingenious.

As shown in fig. 1, 2 and 12, a handle bar 1c is rotatably connected to the upper end of the supporting bar 14, a sliding rod 53 capable of sliding relative to the supporting bar 14 and the protruding portion 10 is arranged in the supporting bar 14 and the protruding portion 10, a pull rope 54 capable of pulling the sliding rod 53 to slide downwards when the handle bar 1c rotates is arranged between the handle bar 1c and the sliding rod 53, a driving block 55 capable of being pushed by the sliding rod 53 to slide downwards when the sliding rod 53 slides downwards is arranged in the upper end of the rear foot bar 11, a slope 5a capable of pushing the operating rod 51 to move downwards when the driving block 55 slides downwards is arranged on the driving block 55, and a third spring 56 capable of resetting the driving block 55 is further arranged in the rear foot bar 11. The handle bar 1c is provided so that the support bar 14 is extended to facilitate the user to walk while pushing the stroller. When the baby stroller structure is folded, the handle 1c is rotated, the pull rope 54 pulls the slide rod 53 to slide downwards, the slide rod 53 pushes the driving block 55, the driving block 55 pushes the operating rod 51 to move downwards through the slope 5a when sliding downwards, and then the frame locking mechanism 4 and the backrest locking mechanism 3 are unlocked simultaneously.

As shown in fig. 12, a fixing rod 57 having an arc end is provided in the support rod 14, a fixing groove 58 is provided in the fixing rod 57, the slide rod 53 is provided in the fixing groove 58, and the pull cord 54 is connected to the slide rod 53 by passing through the fixing rod 57 and passing around the end thereof. Therefore, the sliding rod 53 can slide downwards by pulling the pull rope 54 upwards, the design is ingenious, and the sliding rod 53 slides in the fixing groove 58, so that the movement is stable.

Claims (10)

1. A baby stroller structure, characterized in that: comprises a foldable frame (1), the frame (1) comprises a rear foot bar (11), the lower end of the rear foot bar (11) is provided with a rear wheel (12), the upper end of the rear foot bar (11) is rotatably connected with a front foot bar (13), the lower end of the front foot bar (13) is connected with a front wheel (15), the rear foot bar (11) is provided with a convex part (10) which protrudes upwards, the convex part (10) is rotatably connected with a support rod (14), the middle part of the rear foot bar (11) is provided with a fixed seat (16), the inner side of the rear foot bar (11) is also provided with a sliding chute (1a), the sliding chute (1a) is internally provided with a sliding seat (17) which can slide up and down, a front pull rod (18) which is rotatably connected with the sliding seat (17) and the front foot bar (13) is arranged between the sliding seat (17) and the support rod (14), and a rear pull rod (19) which is rotatably connected with the sliding seat (17) and the support rod, fixing base (16) and sliding seat (17) between be equipped with frame locking mechanical system (4) that can lock frame (1) expansion state, fixing base (16) on still be connected with back (2), and back (2) lower extreme and fixing base (16) between be equipped with back locking mechanical system (3) that are used for locking the two, bracing piece (14), bulge (10) and back foot bar (11) in still be equipped with and enable operation part (5) that back locking mechanical system (3) and frame locking mechanical system (4) unblock simultaneously.

2. The stroller structure of claim 1, wherein: front wheel (15) including front wheel frame (151), front wheel frame (151) on be equipped with fixed axle (152) and tire (153), front wheel (15) and front foot pole (13) between be equipped with the anti-shake device, the anti-shake device including establishing fixed cover (71) of front foot pole (13) lower extreme, fixed cover (71) in be equipped with card hole (72) that supply fixed axle (152) card to go into, fixed cover (71) in still be equipped with the lower extreme and support to lean on front wheel frame (151) and can be in fixed cover (71) anti-shake subassembly (73) of drunkenness from top to bottom, anti-shake subassembly (73) and fixed cover (71) between be equipped with buffer spring (74).

3. The stroller structure of claim 2, wherein: the anti-shake component (73) comprises an anti-shake column (731), the upper end of the anti-shake column (731) abuts against the buffer spring (74), and the lower end of the anti-shake column (731) is connected with an anti-shake plate (732) which can abut against the front wheel carrier (151).

4. The stroller structure of claim 1, wherein: preceding foot pole (13) upper end be equipped with transverse bar (1b), transverse bar (1b) on be equipped with and lean on the subassembly by its pivoted leg relatively, the leg lean on the subassembly including rotate leg backup plate (81) of connection on transverse bar (1b), leg backup plate (81) inboard rotate be connected with can with transverse bar (1b) on block pole (82) the block pole (83) of block, block pole (83) and leg backup plate (81) between be equipped with positioning spring (84).

5. The stroller structure of claim 1, wherein: frame locking mechanical system (4) including rotating the stick up pole (41) of connecting on fixing base (16), stick up pole (41) lower extreme be connected with card locking pole (42) that can take transverse movement when it rotates, sliding seat (17) on be equipped with card lockhole (43) that can block or separate with card locking pole (42), operating means (5) including establishing in back foot bar (11) and can promote stick up pole (41) upper end and make stick up pole (41) pivoted operating lever (51), stick up and still be equipped with between pole (41) and fixing base (16) and enable card locking pole (42) and card lockhole (43) when frame (1) expansion state and keep first spring (44) of block.

6. The stroller structure of claim 5, wherein: the backrest locking mechanism (3) comprises a backrest seat (21) and a plurality of clamping grooves (31) arranged on the backrest seat (21) in the circumferential direction, a plurality of tooth sockets (32) are arranged on the fixing seat (16) in the circumferential direction, a moving block (33) capable of moving transversely is arranged in a cavity defined by the fixing seat (16) and the backrest seat (21), a clamping strip (34) capable of being clamped with the clamping grooves (31) and teeth (35) capable of being clamped with the tooth sockets (32) are arranged on the moving block (33), a pushing block (52) capable of being pushed by the operating rod (51) to move transversely when the operating rod (51) pushes the tilting rod (41) to rotate is arranged in the fixing seat (16), and the pushing block (52) pushes the moving block (33) to move transversely to separate the teeth (35) from the tooth sockets (32) when the pushing block (52) moves transversely, and a second spring (36) which can enable the teeth (35) and the tooth sockets (32) to be engaged when the frame (1) is in an unfolded state is arranged between the backrest seat (21) and the moving block (33).

7. The stroller structure of claim 6, wherein: the adjusting mechanism capable of adjusting the angle of the backrest (2) is further arranged between the moving block (33) and the fixed seat (16), the adjusting mechanism comprises a rotating block (61) arranged between the moving block (33) and the fixed seat (16), an inclined bulge is arranged on the moving block (33), an inclined groove (63) capable of being matched with the inclined bulge is arranged on the rotating block (61), when the rotating block (61) rotates, the groove wall of the inclined groove (63) pushes the moving block (33) to move transversely so that the teeth (35) are separated from the tooth grooves (32), a sliding sleeve (64) capable of sliding relative to the backrest is arranged on the backrest (2), and a pull cable (65) capable of pulling the rotating block (61) to rotate is arranged between the sliding sleeve (64) and the rotating block (61).

8. The stroller structure of claim 6, wherein: the upper end of the supporting rod (14) is rotatably connected with a hand push handle (1c), a sliding rod (53) capable of sliding relative to the supporting rod (14) and the protruding portion (10) is arranged in the supporting rod (14) and the protruding portion, a pull rope (54) capable of pulling the sliding rod (53) to slide downwards when the hand push handle (1c) rotates is arranged between the hand push handle (1c) and the sliding rod (53), a driving block (55) capable of being pushed by the sliding rod (53) to slide downwards when the sliding rod (53) slides downwards is arranged in the upper end of the rear foot rod (11), a slope (5a) capable of pushing the operating rod (51) to move downwards when the driving block slides downwards is arranged on the driving block (55), and a third spring (56) capable of enabling the driving block (55) to reset is further arranged in the rear foot rod (11).

9. The stroller structure of claim 8, wherein: the novel multifunctional supporting rod is characterized in that a fixing rod (57) with an arc-shaped end portion is arranged in the supporting rod (14), a fixing groove (58) is formed in the fixing rod (57), the sliding rod (53) is arranged in the fixing groove (58), and the pull rope (54) penetrates through the fixing rod (57) and bypasses the end portion of the fixing rod to be connected with the sliding rod (53).

10. The stroller structure of claim 6, wherein: the push block (52) is provided with an inclined surface (50) which can be matched with the upper side wall of the transverse hole (59).

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